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https://github.com/varun-r-mallya/sysprof.git
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libsysprof-ui: start rendering mark data
This commit is contained in:
Christian Hergert
204
src/libsysprof-ui/sysprof-cell-renderer-duration.c
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204
src/libsysprof-ui/sysprof-cell-renderer-duration.c
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/* sysprof-cell-renderer-duration.c
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*
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* Copyright 2019 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#define G_LOG_DOMAIN "sysprof-cell-renderer-duration"
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#include "config.h"
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#include "sysprof-cell-renderer-duration.h"
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typedef struct
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{
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gint64 begin_time;
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gint64 end_time;
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gint64 zoom_begin;
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gint64 zoom_end;
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} SysprofCellRendererDurationPrivate;
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enum {
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PROP_0,
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PROP_BEGIN_TIME,
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PROP_END_TIME,
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PROP_ZOOM_BEGIN,
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PROP_ZOOM_END,
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N_PROPS
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};
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G_DEFINE_TYPE_WITH_PRIVATE (SysprofCellRendererDuration, sysprof_cell_renderer_duration, GTK_TYPE_CELL_RENDERER)
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static GParamSpec *properties [N_PROPS];
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static void
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sysprof_cell_renderer_duration_render (GtkCellRenderer *renderer,
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cairo_t *cr,
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GtkWidget *widget,
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const GdkRectangle *bg_area,
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const GdkRectangle *cell_area,
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GtkCellRendererState state)
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{
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SysprofCellRendererDuration *self = (SysprofCellRendererDuration *)renderer;
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SysprofCellRendererDurationPrivate *priv = sysprof_cell_renderer_duration_get_instance_private (self);
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GtkStyleContext *style_context;
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gdouble zoom_range;
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gdouble x1, x2;
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GdkRGBA rgba;
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GdkRectangle r;
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g_assert (SYSPROF_IS_CELL_RENDERER_DURATION (self));
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g_assert (cr != NULL);
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g_assert (GTK_IS_WIDGET (widget));
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if (priv->begin_time == priv->end_time)
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return;
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if (priv->end_time < priv->begin_time)
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return;
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if (priv->begin_time > priv->zoom_end || priv->end_time < priv->zoom_begin)
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return;
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style_context = gtk_widget_get_style_context (widget);
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gtk_style_context_get_color (style_context,
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gtk_style_context_get_state (style_context),
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&rgba);
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zoom_range = (gdouble)priv->zoom_end - (gdouble)priv->zoom_begin;
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x1 = (priv->begin_time - priv->zoom_begin) / zoom_range * cell_area->width;
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x2 = (priv->end_time - priv->zoom_begin) / zoom_range * cell_area->width;
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r.x = cell_area->x + x1;
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r.y = cell_area->y;
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r.width = MAX (1.0, x2 - x1);
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r.height = cell_area->height;
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gdk_cairo_rectangle (cr, &r);
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gdk_cairo_set_source_rgba (cr, &rgba);
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cairo_fill (cr);
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}
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static void
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sysprof_cell_renderer_duration_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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SysprofCellRendererDuration *self = SYSPROF_CELL_RENDERER_DURATION (object);
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SysprofCellRendererDurationPrivate *priv = sysprof_cell_renderer_duration_get_instance_private (self);
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switch (prop_id)
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{
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case PROP_BEGIN_TIME:
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g_value_set_int64 (value, priv->begin_time);
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break;
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case PROP_ZOOM_BEGIN:
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g_value_set_int64 (value, priv->zoom_begin);
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break;
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case PROP_ZOOM_END:
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g_value_set_int64 (value, priv->zoom_end);
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break;
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case PROP_END_TIME:
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g_value_set_int64 (value, priv->end_time);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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sysprof_cell_renderer_duration_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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SysprofCellRendererDuration *self = SYSPROF_CELL_RENDERER_DURATION (object);
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SysprofCellRendererDurationPrivate *priv = sysprof_cell_renderer_duration_get_instance_private (self);
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switch (prop_id)
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{
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case PROP_BEGIN_TIME:
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priv->begin_time = g_value_get_int64 (value);
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break;
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case PROP_ZOOM_BEGIN:
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priv->zoom_begin = g_value_get_int64 (value);
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break;
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case PROP_ZOOM_END:
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priv->zoom_end = g_value_get_int64 (value);
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break;
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case PROP_END_TIME:
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priv->end_time = g_value_get_int64 (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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sysprof_cell_renderer_duration_class_init (SysprofCellRendererDurationClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
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object_class->get_property = sysprof_cell_renderer_duration_get_property;
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object_class->set_property = sysprof_cell_renderer_duration_set_property;
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cell_class->render = sysprof_cell_renderer_duration_render;
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properties [PROP_BEGIN_TIME] =
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g_param_spec_int64 ("begin-time", NULL, NULL,
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G_MININT64, G_MAXINT64, 0,
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(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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properties [PROP_ZOOM_BEGIN] =
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g_param_spec_int64 ("zoom-begin", NULL, NULL,
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G_MININT64, G_MAXINT64, 0,
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(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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properties [PROP_ZOOM_END] =
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g_param_spec_int64 ("zoom-end", NULL, NULL,
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G_MININT64, G_MAXINT64, 0,
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(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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properties [PROP_END_TIME] =
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g_param_spec_int64 ("end-time", NULL, NULL,
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G_MININT64, G_MAXINT64, 0,
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(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_properties (object_class, N_PROPS, properties);
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}
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static void
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sysprof_cell_renderer_duration_init (SysprofCellRendererDuration *self)
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{
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}
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GtkCellRenderer *
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sysprof_cell_renderer_duration_new (void)
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{
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return g_object_new (SYSPROF_TYPE_CELL_RENDERER_DURATION, NULL);
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}
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